1278767360

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:169

約数の個数: 288

約数和(自身を含む): 3549299712

約数和(自身を除く): 2270532352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 37, 40, 52, 62, 64, 65, 67, 74, 80, 104, 124, 128, 130, 134, 148, 155, 160, 185, 208, 248, 256, 260, 268, 296, 310, 320, 335, 370, 403, 416, 481, 496, 520, 536, 592, 620, 640, 670, 740, 806, 832, 871, 962, 992, 1040, 1072, 1147, 1184, 1240, 1280, 1340, 1480, 1612, 1664, 1742, 1924, 1984, 2015, 2077, 2080, 2144, 2294, 2368, 2405, 2479, 2480, 2680, 2960, 3224, 3328, 3484, 3848, 3968, 4030, 4154, 4160, 4288, 4355, 4588, 4736, 4810, 4958, 4960, 5360, 5735, 5920, 6448, 6968, 7696, 7936, 8060, 8308, 8320, 8576, 8710, 9176, 9472, 9620, 9916, 9920, 10385, 10720, 11470, 11840, 12395, 12896, 13936, 14911, 15392, 16120, 16616, 16640, 17152, 17420, 18352, 19240, 19832, 19840, 20770, 21440, 22940, 23680, 24790, 25792, 27001, 27872, 29822, 30784, 32227, 32240, 33232, 34840, 36704, 38480, 39664, 39680, 41540, 42880, 45880, 47360, 49580, 51584, 54002, 55744, 59644, 61568, 64454, 64480, 66464, 69680, 73408, 74555, 76849, 76960, 79328, 83080, 85760, 91760, 99160, 103168, 108004, 111488, 119288, 123136, 128908, 128960, 132928, 135005, 139360, 146816, 149110, 153698, 153920, 158656, 161135, 166160, 183520, 198320, 216008, 222976, 238576, 257816, 257920, 265856, 270010, 278720, 293632, 298220, 307396, 307840, 317312, 322270, 332320, 367040, 384245, 396640, 432016, 477152, 515632, 515840, 531712, 540020, 557440, 596440, 614792, 615680, 634624, 644540, 664640, 734080, 768490, 793280, 864032, 954304, 999037, 1031264, 1080040, 1114880, 1192880, 1229584, 1289080, 1329280, 1468160, 1536980, 1586560, 1728064, 1908608, 1998074, 2062528, 2160080, 2385760, 2459168, 2578160, 2658560, 3073960, 3173120, 3456128, 3817216, 3996148, 4125056, 4320160, 4771520, 4918336, 4995185, 5156320, 6147920, 6912256, 7992296, 8250112, 8640320, 9543040, 9836672, 9990370, 10312640, 12295840, 15984592, 17280640, 19086080, 19673344, 19980740, 20625280, 24591680, 31969184, 34561280, 39961480, 41250560, 49183360, 63938368, 79922960, 98366720, 127876736, 159845920, 255753472, 319691840, 639383680, 1278767360]

約数ペア:

[(1, 1278767360), (2, 639383680), (4, 319691840), (5, 255753472), (8, 159845920), (10, 127876736), (13, 98366720), (16, 79922960), (20, 63938368), (26, 49183360), (31, 41250560), (32, 39961480), (37, 34561280), (40, 31969184), (52, 24591680), (62, 20625280), (64, 19980740), (65, 19673344), (67, 19086080), (74, 17280640), (80, 15984592), (104, 12295840), (124, 10312640), (128, 9990370), (130, 9836672), (134, 9543040), (148, 8640320), (155, 8250112), (160, 7992296), (185, 6912256), (208, 6147920), (248, 5156320), (256, 4995185), (260, 4918336), (268, 4771520), (296, 4320160), (310, 4125056), (320, 3996148), (335, 3817216), (370, 3456128), (403, 3173120), (416, 3073960), (481, 2658560), (496, 2578160), (520, 2459168), (536, 2385760), (592, 2160080), (620, 2062528), (640, 1998074), (670, 1908608), (740, 1728064), (806, 1586560), (832, 1536980), (871, 1468160), (962, 1329280), (992, 1289080), (1040, 1229584), (1072, 1192880), (1147, 1114880), (1184, 1080040), (1240, 1031264), (1280, 999037), (1340, 954304), (1480, 864032), (1612, 793280), (1664, 768490), (1742, 734080), (1924, 664640), (1984, 644540), (2015, 634624), (2077, 615680), (2080, 614792), (2144, 596440), (2294, 557440), (2368, 540020), (2405, 531712), (2479, 515840), (2480, 515632), (2680, 477152), (2960, 432016), (3224, 396640), (3328, 384245), (3484, 367040), (3848, 332320), (3968, 322270), (4030, 317312), (4154, 307840), (4160, 307396), (4288, 298220), (4355, 293632), (4588, 278720), (4736, 270010), (4810, 265856), (4958, 257920), (4960, 257816), (5360, 238576), (5735, 222976), (5920, 216008), (6448, 198320), (6968, 183520), (7696, 166160), (7936, 161135), (8060, 158656), (8308, 153920), (8320, 153698), (8576, 149110), (8710, 146816), (9176, 139360), (9472, 135005), (9620, 132928), (9916, 128960), (9920, 128908), (10385, 123136), (10720, 119288), (11470, 111488), (11840, 108004), (12395, 103168), (12896, 99160), (13936, 91760), (14911, 85760), (15392, 83080), (16120, 79328), (16616, 76960), (16640, 76849), (17152, 74555), (17420, 73408), (18352, 69680), (19240, 66464), (19832, 64480), (19840, 64454), (20770, 61568), (21440, 59644), (22940, 55744), (23680, 54002), (24790, 51584), (25792, 49580), (27001, 47360), (27872, 45880), (29822, 42880), (30784, 41540), (32227, 39680), (32240, 39664), (33232, 38480), (34840, 36704)]